Hertel 02387694 Reduced Shank Drill Bit 39/64 in Hss

Product Description

The HERTEL 02387694 is a reduced shank drill bit designed for drilling into low and medium tensile strength materials. It features a 39/64-inch (0.6094 inch decimal) cutting diameter with a 1/2-inch straight-cylindrical shank, allowing it to fit into standard 1/2-inch drill chucks even though the cutting end is larger. The bit is manufactured from high-speed steel (HSS) with an oxide finish that provides basic lubricity and corrosion resistance. With a 118-degree standard point angle and right-hand spiral flutes, it delivers clean entry and efficient chip evacuation in a wide range of common drilling applications.

This bit is suited for use in machine shop, maintenance, and light industrial environments where drilling through mild steel, aluminum, plastics, and similar low-to-medium tensile strength workpieces is required. The 6-inch overall length and 3-inch flute length make it practical for general-purpose through-hole and blind-hole drilling on drill presses, milling machines, and handheld drills equipped with a 1/2-inch chuck. It is a single-piece, individually packaged bit intended for professional tradespeople and shop technicians who need reliable dimensional accuracy at the cutting diameter.

Key Features

• 39/64-inch cutting diameter (0.6094 inch decimal) with a reduced 1/2-inch straight-cylindrical shank for standard chuck compatibility
• High-speed steel construction for durability across repeated use in low and medium tensile strength materials
• 118-degree standard point angle for general-purpose drilling with consistent starting and penetration
• Oxide finish provides basic surface protection and reduces friction during cutting
• Right-hand cut with regular spiral flutes for efficient chip removal
• 3-inch flute length supports drilling to a maximum depth of 3 inches

Compatibility

Designed for use with 1/2-inch drill chucks on standard drill presses, handheld power drills, and milling machines. Intended for drilling low and medium tensile strength materials including mild steel, aluminum, and similar workpieces.

Installation Notes

Installation is performed by machinists or maintenance technicians. Secure the 1/2-inch shank firmly in the chuck and verify the bit is concentric before drilling. Always power down the drill or press and lock out the machine before changing bits. Use appropriate cutting fluid or coolant as required by the workpiece material and machine setup, noting that this bit is rated for dry cutting but fluid may extend service life.